Detroit News (via Fox News) reports that Brian Douglas White was obsessed with "American Psycho" and and posted brooding lyrics on his Facebook page, which has since been deleted.

Among the lyrics White posted was a line from "Somebody That I Used to Know" by Gotye. "You can get addicted to a certain kind of sadness," White posted.

He also posted a line from Blue October's song "Hate Me," a macabre record that begins with a mother calling her son to check in on how he's faring and to "see if you were checking in on your medications."

"And with a sad heart I say bye to you and wave," read the line White posted. "Kicking shadows on the street for every mistake that I had made."

HuffPost has reached out to representatives of both Gotye and Blue October for comment.

Authorities also said White contemplated committing suicide for four hours but never intended to hurt his ex-girlfriend.

It's no longer uncommon for chilling Facebook or Twitter messages to be discovered in the wake of tragedies, both on the part of killers and suicide victims. Perhaps most famously, Tyler Clementi -- a Rutgers student who was spied on via webcam by his roommate -- updated his Facebook status before committing suicide by jumping off the George Washington Bridge in September 2010.